Author Question: A 4.0 cm tall object is placed 50 cm away from a converging lens of focal length 25 cm. What is the ... (Read 47 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
A 4.0 cm tall object is placed 50 cm away from a converging lens of focal length 25 cm. What is the nature and location of the image?
 
  A) The image is real, 2.5 cm tall, 25 cm on the same side as object.
  B) The image is virtual, 2.5 cm tall, 25 cm on the other side of the lens.
  C) The image is virtual, 2.0 cm tall, 15 cm on the other side of the lens.
  D) The image is virtual, 4.0 cm tall, 50 cm on the same side as object.
  E) The image is real, 4.0 cm tall, 50 cm on the other side of the lens.

Question 2

Two spaceships approach each other along a straight line at a constant velocity of 0.988c as measured by the captain of one of the ships. An observer on Earth is able to measure the speed of only one of the ships as 0.900c.
 
  From the point of view of the observer on Earth, what is the speed of the other ship?



kxciann

  • Sr. Member
  • ****
  • Posts: 356
Answer to Question 1

E

Answer to Question 2

0.794c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

For a complete list of videos, visit our video library